Big Sing California Audience members in L.A. and five other cities around the state will sing along with Los Angeles Master Chorale in this concert that will be simulcast between venues; composer Eric Whitacre is the host. Walt Disney Concert Hall, 111 S. Grand Ave., L.A. Sat., 2 p.m. Free; advanced registration required at www.lamasterchorale.org. (213) 972-7282.

SummerFest 18 Piano Trio Celeste is joined by violist Karen Dreyfus for a program of works by Beethoven, Piazzolla and Schumann in this Music Guild presentation. University Synagogue, 11960 Sunset Blvd., Brentwood. Next Sun., 3 p.m. $46-$56; discounts available. (310) 558-3500.